DIN7504 carbon steel Yellow zinc flange head Screws  

DIN7504 carbon steel Yellow zinc flange head Screws The Hex Head Self Tapping Screw is also known as Roofing Screw that is commonly used for metal roofing systems. Lituo is one of the leading roofing screw manufacturers in China and our products are selled all over the world, in particular, in South America. Sheet metal screws, or tapping screws, are highly versatile. Though they are designed to attach metal to metal, they’re also used to attach metal to wood, fiberglass, and plastic. Great for general repair around the house, their sharp threads draw materials together and ensure a secure hold. Sheet metal screws are fully threaded with a sharp point. A pre-drilled hole is required for installation. Finish:   zinc plating Material:   Steel, C1022 Measurement system:   Metric Head Style:   HEX Place of Origin:   handan city China Brand Name:   JK Model Number:   4.8-6.3 Standard:   DIN, A/F…